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27// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
28// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
29
30
31#ifndef PX_DEFAULT_ALLOCATOR_H
32#define PX_DEFAULT_ALLOCATOR_H
33/** \addtogroup extensions
34 @{
35*/
36
37#include "foundation/PxAllocatorCallback.h"
38#include "foundation/PxAssert.h"
39#include "common/PxPhysXCommonConfig.h"
40
41#include <stdlib.h>
42
43#if PX_WINDOWS_FAMILY || PX_LINUX_FAMILY || PX_SWITCH
44#include <malloc.h>
45#endif
46
47#if !PX_DOXYGEN
48namespace physx
49{
50#endif
51
52#if PX_WINDOWS_FAMILY
53// on win32 we only have 8-byte alignment guaranteed, but the CRT provides special aligned allocation fns
54PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
55{
56 return _aligned_malloc(size, 16);
57}
58
59PX_FORCE_INLINE void platformAlignedFree(void* ptr)
60{
61 _aligned_free(ptr);
62}
63#elif PX_LINUX_FAMILY || PX_SWITCH
64PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
65{
66 return ::memalign(alignment: 16, size: size);
67}
68
69PX_FORCE_INLINE void platformAlignedFree(void* ptr)
70{
71 ::free(ptr: ptr);
72}
73#else
74// on all other platforms we get 16-byte alignment by default
75PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
76{
77 return ::malloc(size);
78}
79
80PX_FORCE_INLINE void platformAlignedFree(void* ptr)
81{
82 ::free(ptr);
83}
84#endif
85
86/**
87\brief default implementation of the allocator interface required by the SDK
88*/
89class PxDefaultAllocator : public PxAllocatorCallback
90{
91public:
92 void* allocate(size_t size, const char*, const char*, int)
93 {
94 void* ptr = platformAlignedAlloc(size);
95 PX_ASSERT((reinterpret_cast<size_t>(ptr) & 15)==0);
96 return ptr;
97 }
98
99 void deallocate(void* ptr)
100 {
101 platformAlignedFree(ptr);
102 }
103};
104
105#if !PX_DOXYGEN
106} // namespace physx
107#endif
108
109/** @} */
110#endif
111

source code of qtquick3dphysics/src/3rdparty/PhysX/include/extensions/PxDefaultAllocator.h